Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 1 | /* |
| 2 | * GPL HEADER START |
| 3 | * |
| 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 only, |
| 8 | * as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, but |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | * General Public License version 2 for more details (a copy is included |
| 14 | * in the LICENSE file that accompanied this code). |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * version 2 along with this program; If not, see |
Oleg Drokin | 6a5b99a | 2016-06-14 23:33:40 -0400 | [diff] [blame] | 18 | * http://www.gnu.org/licenses/gpl-2.0.html |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 19 | * |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 20 | * GPL HEADER END |
| 21 | */ |
| 22 | /* |
| 23 | * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. |
| 24 | * Use is subject to license terms. |
| 25 | */ |
| 26 | /* |
| 27 | * This file is part of Lustre, http://www.lustre.org/ |
| 28 | * Lustre is a trademark of Sun Microsystems, Inc. |
| 29 | */ |
| 30 | |
| 31 | #define DEBUG_SUBSYSTEM S_LNET |
Greg Kroah-Hartman | 9fdaf8c | 2014-07-11 20:51:16 -0700 | [diff] [blame] | 32 | #include "../../include/linux/lnet/lib-lnet.h" |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 33 | |
Thomas Gummerer | ca4be88 | 2014-10-07 10:10:32 +0200 | [diff] [blame] | 34 | static int |
Ebru Akagunduz | 3f13cd9 | 2013-10-08 23:43:21 +0300 | [diff] [blame] | 35 | lolnd_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 36 | { |
Ebru Akagunduz | 3f13cd9 | 2013-10-08 23:43:21 +0300 | [diff] [blame] | 37 | LASSERT(!lntmsg->msg_routing); |
| 38 | LASSERT(!lntmsg->msg_target_is_router); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 39 | |
| 40 | return lnet_parse(ni, &lntmsg->msg_hdr, ni->ni_nid, lntmsg, 0); |
| 41 | } |
| 42 | |
Thomas Gummerer | ca4be88 | 2014-10-07 10:10:32 +0200 | [diff] [blame] | 43 | static int |
Ebru Akagunduz | 3f13cd9 | 2013-10-08 23:43:21 +0300 | [diff] [blame] | 44 | lolnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg, |
James Simmons | c314c31 | 2016-02-12 12:06:01 -0500 | [diff] [blame] | 45 | int delayed, unsigned int niov, |
| 46 | struct kvec *iov, lnet_kiov_t *kiov, |
| 47 | unsigned int offset, unsigned int mlen, unsigned int rlen) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 48 | { |
| 49 | lnet_msg_t *sendmsg = private; |
| 50 | |
James Simmons | 06ace26 | 2016-02-12 12:06:08 -0500 | [diff] [blame] | 51 | if (lntmsg) { /* not discarding */ |
| 52 | if (sendmsg->msg_iov) { |
| 53 | if (iov) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 54 | lnet_copy_iov2iov(niov, iov, offset, |
| 55 | sendmsg->msg_niov, |
| 56 | sendmsg->msg_iov, |
| 57 | sendmsg->msg_offset, mlen); |
| 58 | else |
| 59 | lnet_copy_iov2kiov(niov, kiov, offset, |
| 60 | sendmsg->msg_niov, |
| 61 | sendmsg->msg_iov, |
| 62 | sendmsg->msg_offset, mlen); |
| 63 | } else { |
James Simmons | 06ace26 | 2016-02-12 12:06:08 -0500 | [diff] [blame] | 64 | if (iov) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 65 | lnet_copy_kiov2iov(niov, iov, offset, |
| 66 | sendmsg->msg_niov, |
| 67 | sendmsg->msg_kiov, |
| 68 | sendmsg->msg_offset, mlen); |
| 69 | else |
| 70 | lnet_copy_kiov2kiov(niov, kiov, offset, |
| 71 | sendmsg->msg_niov, |
| 72 | sendmsg->msg_kiov, |
| 73 | sendmsg->msg_offset, mlen); |
| 74 | } |
| 75 | |
| 76 | lnet_finalize(ni, lntmsg, 0); |
| 77 | } |
| 78 | |
| 79 | lnet_finalize(ni, sendmsg, 0); |
| 80 | return 0; |
| 81 | } |
| 82 | |
| 83 | static int lolnd_instanced; |
| 84 | |
Thomas Gummerer | ca4be88 | 2014-10-07 10:10:32 +0200 | [diff] [blame] | 85 | static void |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 86 | lolnd_shutdown(lnet_ni_t *ni) |
| 87 | { |
Ebru Akagunduz | 3f13cd9 | 2013-10-08 23:43:21 +0300 | [diff] [blame] | 88 | CDEBUG(D_NET, "shutdown\n"); |
| 89 | LASSERT(lolnd_instanced); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 90 | |
| 91 | lolnd_instanced = 0; |
| 92 | } |
| 93 | |
Thomas Gummerer | ca4be88 | 2014-10-07 10:10:32 +0200 | [diff] [blame] | 94 | static int |
Ebru Akagunduz | 3f13cd9 | 2013-10-08 23:43:21 +0300 | [diff] [blame] | 95 | lolnd_startup(lnet_ni_t *ni) |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 96 | { |
Ebru Akagunduz | 3f13cd9 | 2013-10-08 23:43:21 +0300 | [diff] [blame] | 97 | LASSERT(ni->ni_lnd == &the_lolnd); |
| 98 | LASSERT(!lolnd_instanced); |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 99 | lolnd_instanced = 1; |
| 100 | |
Ebru Akagunduz | cb03b88 | 2013-10-08 23:43:22 +0300 | [diff] [blame] | 101 | return 0; |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | lnd_t the_lolnd = { |
| 105 | /* .lnd_list = */ {&the_lolnd.lnd_list, &the_lolnd.lnd_list}, |
| 106 | /* .lnd_refcount = */ 0, |
| 107 | /* .lnd_type = */ LOLND, |
| 108 | /* .lnd_startup = */ lolnd_startup, |
| 109 | /* .lnd_shutdown = */ lolnd_shutdown, |
Mike Shuey | 7e7ab09 | 2015-05-19 10:14:32 -0400 | [diff] [blame] | 110 | /* .lnt_ctl = */ NULL, |
Peng Tao | d7e09d0 | 2013-05-02 16:46:55 +0800 | [diff] [blame] | 111 | /* .lnd_send = */ lolnd_send, |
| 112 | /* .lnd_recv = */ lolnd_recv, |
| 113 | /* .lnd_eager_recv = */ NULL, |
| 114 | /* .lnd_notify = */ NULL, |
| 115 | /* .lnd_accept = */ NULL |
| 116 | }; |